Origin of giant negative piezoelectricity in a layered van der Waals ferroelectric.

abstract：:In addition to their conventional uses, metal-organic frameworks (MOFs) have recently emerged as an interesting class of functional materials and precursors of inorganic materials for electrochemical energy storage and conversion technologies. This class of MOF-related materials can be broadly categorized into two gro...

journal_title：Science advances

authors： Wu HB,Lou XWD

更新日期：2017-12-01 00:00:00

abstract：:Optogenetics is a paradigm-changing new method to study and manipulate the behavior of cells with light. Following major advances of the used genetic constructs over the last decade, the light sources required for optogenetic control are now receiving increased attention. We report a novel optogenetic illumination pla...

journal_title：Science advances

authors： Steude A,Witts EC,Miles GB,Gather MC

更新日期：2016-05-06 00:00:00

abstract：:Over millions of years, the oxidation of organic carbon contained within sedimentary rocks is one of the main sources of carbon dioxide to the atmosphere, yet the controls on this emission remain poorly constrained. We use rhenium to track the oxidation of rock-bound organic carbon in the mountain watersheds of New Ze...

journal_title：Science advances

authors： Horan K,Hilton RG,Selby D,Ottley CJ,Gröcke DR,Hicks M,Burton KW

更新日期：2017-10-04 00:00:00

abstract：:Although Al(III) hydrolysis, condensation, and nucleation play pivotal roles in the synthesis of Al-based compounds and determine their chemical behavior, we still lack experimental evidence regarding the chemistry of nucleation from solution. Here, by combining advanced titration assays, high-resolution transmission ...

journal_title：Science advances

authors： Lukić MJ,Wiedenbeck E,Reiner H,Gebauer D

更新日期：2020-06-03 00:00:00

abstract：:Concern on the impacts of ocean acidification on calcifiers, such as bivalves, sea urchins, and foraminifers, has led to efforts to understand the controls on pH in their habitats, which include kelp forests and seagrass meadows. The metabolism of these habitats can lead to diel fluctuation in pH with increases during...

journal_title：Science advances

authors： Krause-Jensen D,Marbà N,Sanz-Martin M,Hendriks IE,Thyrring J,Carstensen J,Sejr MK,Duarte CM

更新日期：2016-12-14 00:00:00

abstract：:Wearable sweat analysis devices for monitoring of multiple health-related biomarkers with high sensitivity are highly desired for noninvasive and real-time monitoring of human health. Here, we report a flexible sweat analysis patch based on a silk fabric-derived carbon textile for simultaneous detection of six health-...

journal_title：Science advances

authors： He W,Wang C,Wang H,Jian M,Lu W,Liang X,Zhang X,Yang F,Zhang Y

更新日期：2019-11-08 00:00:00

abstract：:Fifty years after its discovery, the ovonic threshold switching (OTS) phenomenon, a unique nonlinear conductivity behavior observed in some chalcogenide glasses, has been recently the source of a real technological breakthrough in the field of data storage memories. This breakthrough was achieved because of the succes...

journal_title：Science advances

authors： Noé P,Verdy A,d'Acapito F,Dory JB,Bernard M,Navarro G,Jager JB,Gaudin J,Raty JY

更新日期：2020-02-28 00:00:00

abstract：:Correlating spatial chemical information with the morphology of closely packed nanostructures remains a challenge for the scientific community. For example, supramolecular self-assembly, which provides a powerful and low-cost way to create nanoscale patterns and engineered nanostructures, is not easily interrogated in...

journal_title：Science advances

authors： Nowak D,Morrison W,Wickramasinghe HK,Jahng J,Potma E,Wan L,Ruiz R,Albrecht TR,Schmidt K,Frommer J,Sanders DP,Park S

更新日期：2016-03-25 00:00:00

abstract：:Amorphous solids, such as glasses, have complex responses to deformations, with substantial consequences in material design and applications. In this respect, two intertwined aspects are important: stability and reversibility. It is crucial to understand, on the one hand, how a glass may become unstable due to increas...

journal_title：Science advances

authors： Jin Y,Urbani P,Zamponi F,Yoshino H

更新日期：2018-12-07 00:00:00

abstract：:Organophosphate-based pesticides inhibit acetylcholinesterase (AChE), which plays a pivotal role in neuromuscular function. While spraying in the field, farmworkers get exposed to pesticides through the dermal route. Internalized pesticide inhibits AChE, which leads to neurotoxicity, cardiotoxicity, cognitive dysfunct...

journal_title：Science advances

authors： Thorat K,Pandey S,Chandrashekharappa S,Vavilthota N,Hiwale AA,Shah P,Sreekumar S,Upadhyay S,Phuntsok T,Mahato M,Mudnakudu-Nagaraju KK,Sunnapu O,Vemula PK

更新日期：2018-10-17 00:00:00

abstract：:By developing new computational models, we examine how enzymatic reactions on an underlying surface can be harnessed to direct the motion and organization of reagent-laden microcapsules in a fluid-filled microchannel. In the presence of appropriate reagents, surface-bound enzymes can act as pumps, which drive large-sc...

journal_title：Science advances

authors： Shklyaev OE,Shum H,Sen A,Balazs AC

更新日期：2016-03-18 00:00:00

abstract：:Annexin-A1 (ANXA1) has recently been proposed to play a role in microglial activation after brain ischemia, but the underlying mechanism remains poorly understood. Here, we demonstrated that ANXA1 is modified by SUMOylation, and SUMOylated ANXA1 could promote the beneficial phenotype polarization of microglia. Mechani...

journal_title：Science advances

authors： Li X,Xia Q,Mao M,Zhou H,Zheng L,Wang Y,Zeng Z,Yan L,Zhao Y,Shi J

更新日期：2021-01-20 00:00:00

abstract：:Bioengineered three-dimensional (3D) matrices expand our experimental repertoire to study tumor growth and progression in a biologically relevant, yet controlled, manner. Here, we used peptide amphiphiles (PAs) to coassemble with and organize extracellular matrix (ECM) proteins producing tunable 3D models of the tumor...

journal_title：Science advances

authors： Hedegaard CL,Redondo-Gómez C,Tan BY,Ng KW,Loessner D,Mata A

更新日期：2020-10-02 00:00:00

abstract：:Resistances that exceed the Mott-Ioffe-Regel limit (known as bad metal behavior) and non-Fermi liquid behavior are ubiquitous features of the normal state of many strongly correlated materials. We establish the conditions that lead to bad metal and non-Fermi liquid phases in NdNiO3, which exhibits a prototype bandwidt...

journal_title：Science advances

authors： Mikheev E,Hauser AJ,Himmetoglu B,Moreno NE,Janotti A,Van de Walle CG,Stemmer S

更新日期：2015-11-06 00:00:00

abstract：:Fluid catalytic cracking (FCC) particles account for 40 to 45% of worldwide gasoline production. The hierarchical complex particle pore structure allows access of long-chain feedstock molecules into active catalyst domains where they are cracked into smaller, more valuable hydrocarbon products (for example, gasoline)....

journal_title：Science advances

authors： Meirer F,Kalirai S,Morris D,Soparawalla S,Liu Y,Mesu G,Andrews JC,Weckhuysen BM

更新日期：2015-04-03 00:00:00

abstract：:The Mott transition-a metal-insulator transition caused by repulsive Coulomb interactions between electrons-is a central issue in condensed matter physics because it is the mother earth of various attractive phenomena. Outstanding examples are high-Tc (critical temperature) cuprates and manganites exhibiting colossal ...

journal_title：Science advances

authors： Itou T,Watanabe E,Maegawa S,Tajima A,Tajima N,Kubo K,Kato R,Kanoda K

更新日期：2017-08-11 00:00:00

abstract：:Viscosity of fluids is strongly system dependent, varies across many orders of magnitude, and depends on molecular interactions and structure in a complex way not amenable to first-principles theories. Despite the variations and theoretical difficulties, we find a new quantity setting the minimal kinematic viscosity o...

journal_title：Science advances

authors： Trachenko K,Brazhkin VV

更新日期：2020-04-24 00:00:00

abstract：:The catalytic activity of alloy nanoparticles depends on the particle size and composition ratio of different metals. Alloy nanoparticles composed of Pd, Pt, and Au are widely used as catalysts for oxidation reactions. The catalytic activities of Pt and Au nanoparticles in oxidation reactions are known to increase as ...

journal_title：Science advances

authors： Takahashi M,Koizumi H,Chun WJ,Kori M,Imaoka T,Yamamoto K

更新日期：2017-07-26 00:00:00

abstract：:The single-span membrane protein KCNE3 modulates a variety of voltage-gated ion channels in diverse biological contexts. In epithelial cells, KCNE3 regulates the function of the KCNQ1 potassium ion (K(+)) channel to enable K(+) recycling coupled to transepithelial chloride ion (Cl(-)) secretion, a physiologically crit...

journal_title：Science advances

authors： Kroncke BM,Van Horn WD,Smith J,Kang C,Welch RC,Song Y,Nannemann DP,Taylor KC,Sisco NJ,George AL Jr,Meiler J,Vanoye CG,Sanders CR

更新日期：2016-09-09 00:00:00

abstract：:A trimer-of-hairpins motif has been identified in triggering virus-cell fusion within a variety of viral envelopes. Chemically manipulating such a motif represents current repertoire of viral fusion inhibitors. Here, we report that triterpenoids, a class of natural products, antagonize this trimer-of-hairpins via its ...

journal_title：Science advances

authors： Si L,Meng K,Tian Z,Sun J,Li H,Zhang Z,Soloveva V,Li H,Fu G,Xia Q,Xiao S,Zhang L,Zhou D

更新日期：2018-11-21 00:00:00

abstract：:Micrometer-scale acoustic waves are highly useful for refined optomechanical and acoustofluidic manipulation, where these fields are spatially localized along the transducer aperture but not along the acoustic propagation direction. In the case of acoustic tweezers, such a conventional acoustic standing wave results i...

journal_title：Science advances

authors： Collins DJ,Devendran C,Ma Z,Ng JW,Neild A,Ai Y

更新日期：2016-07-13 00:00:00

abstract：:Forest loss is one of the most pervasive land surface transformations on Earth, with drastic effects on global climate, ecosystems, and human well-being. As part of biodiversity conservation and climate change mitigation efforts, many countries, including China, have been implementing large-scale policies to conserve ...

journal_title：Science advances

authors： Viña A,McConnell WJ,Yang H,Xu Z,Liu J

更新日期：2016-03-18 00:00:00

abstract：:Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is an unexplained incapacitating illness that may affect up to 4 million people in the United States alone. There are no validated laboratory tests for diagnosis or management despite global efforts to find biomarkers of disease. We considered the possibility...

journal_title：Science advances

authors： Hornig M,Montoya JG,Klimas NG,Levine S,Felsenstein D,Bateman L,Peterson DL,Gottschalk CG,Schultz AF,Che X,Eddy ML,Komaroff AL,Lipkin WI

更新日期：2015-02-01 00:00:00

abstract：:Black phosphorus quantum dots (BPQDs) are proposed as effective seed-like sites to modulate the nucleation and growth of CsPbI2Br perovskite crystalline thin layers, allowing an enhanced crystallization and remarkable morphological improvement. We reveal that the lone-pair electrons of BPQDs can induce strong binding ...

journal_title：Science advances

authors： Gong X,Guan L,Li Q,Li Y,Zhang T,Pan H,Sun Q,Shen Y,Grätzel C,Zakeeruddin SM,Grätzel M,Wang M

更新日期：2020-04-10 00:00:00

abstract：:Nanomaterials often surprise us with unexpected phenomena. Here, we report a discovery of the anti-twinning deformation, previously thought impossible, in nanoscale body-centered cubic (BCC) tungsten crystals. By conducting in situ transmission electron microscopy nanomechanical testing, we observed the nucleation and...

journal_title：Science advances

authors： Wang J,Zeng Z,Wen M,Wang Q,Chen D,Zhang Y,Wang P,Wang H,Zhang Z,Mao SX,Zhu T

更新日期：2020-06-03 00:00:00

abstract：:The Rashba physics has been intensively studied in the field of spin orbitronics for the purpose of searching novel physical properties and the ferromagnetic (FM) magnetization switching for technological applications. We report our observation of the inverse Edelstein effect up to room temperature in the Rashba-split...

journal_title：Science advances

authors： Song Q,Zhang H,Su T,Yuan W,Chen Y,Xing W,Shi J,Sun J,Han W

更新日期：2017-03-17 00:00:00

abstract：:The urea channel of Helicobacterpylori (HpUreI) is an ideal drug target for preventing gastric cancer but incomplete understanding of its gating mechanism has hampered development of inhibitors for the eradication of H. pylori. Here, we present the cryo-EM structures of HpUreI in closed and open conformations, both at...

journal_title：Science advances

authors： Cui Y,Zhou K,Strugatsky D,Wen Y,Sachs G,Zhou ZH,Munson K

更新日期：2019-03-20 00:00:00

abstract：:Developing cost-effective, active, and durable electrocatalysts is one of the most important issues for the commercialization of fuel cells. Ultrathin Pt-Mo-Ni nanowires (NWs) with a diameter of ~2.5 nm and lengths of up to several micrometers were synthesized via a H2-assisted solution route (HASR). This catalyst was...

journal_title：Science advances

authors： Mao J,Chen W,He D,Wan J,Pei J,Dong J,Wang Y,An P,Jin Z,Xing W,Tang H,Zhuang Z,Liang X,Huang Y,Zhou G,Wang L,Wang D,Li Y

更新日期：2017-08-30 00:00:00

abstract：:Can mating influence cognitive functions such as learning and memory in a permanent way? We have addressed this question using a combined behavioral and in vivo imaging approach, finding that aversive long-term memory performance strongly increases in Drosophila females in response to sperm transfer following mating. ...

journal_title：Science advances

authors： Scheunemann L,Lampin-Saint-Amaux A,Schor J,Preat T

更新日期：2019-11-20 00:00:00

abstract：:Species interactions have long been predicted to increase in intensity toward the tropics and low elevations because of gradients in climate, productivity, or biodiversity. Despite their importance for understanding global ecological and evolutionary processes, plant-animal interaction gradients are particularly diffi...

journal_title：Science advances

authors： Hargreaves AL,Suárez E,Mehltreter K,Myers-Smith I,Vanderplank SE,Slinn HL,Vargas-Rodriguez YL,Haeussler S,David S,Muñoz J,Carlos Almazán-Núñez R,Loughnan D,Benning JW,Moeller DA,Brodie JF,Thomas HJD,Morales M PA

更新日期：2019-02-20 00:00:00